真島こころ
type: MusicGroup
popularity: 3
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd10c180c48fe17a7673774fc2acd27ae51db4589d2596ec34405830a41ed09f5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0bc11a9d-bb22-4d3e-95c9-2682849edb56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0bc11a9d-bb22-4d3e-95c9-2682849edb56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0bc11a9d-bb22-4d3e-95c9-2682849edb56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd10c180c48fe17a7673774fc2acd27ae51db4589d2596ec34405830a41ed09f5","name":"真島こころ","registered_at":"2026-06-15T17:40:37Z","symbol":"NIM0782864","token_address":"0xfd46b8eea427e326ac765acc3cbbbda3d5925bf7","type":"artist","uuid":"0bc11a9d-bb22-4d3e-95c9-2682849edb56"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10c180c48fe17a7673774fc2acd27ae51db4589d2596ec34405830a41ed09f5. Chain 2 (Bitcoin): anchored in block 953886 (2026-06-16T04:37:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bc11a9d-bb22-4d3e-95c9-2682849edb56.json and https://artists.proofprofile.net/proofs/artist/0bc11a9d-bb22-4d3e-95c9-2682849edb56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:37:45Z
  text: {"copyright_id":"0xd10c180c48fe17a7673774fc2acd27ae51db4589d2596ec34405830a41ed09f5","name":"真島こころ","registered_at":"2026-06-15T17:40:37Z","symbol":"NIM0782864","token_address":"0xfd46b8eea427e326ac765acc3cbbbda3d5925bf7","type":"artist","uuid":"0bc11a9d-bb22-4d3e-95c9-2682849edb56"}
album: pebble
  type: MusicAlbum
  date published: 2023-02-22
album: フエラムネの向こう側
  type: MusicAlbum
  date published: 2023-02-22
album: 雪の鳴る街へ
  type: MusicAlbum
  date published: 2023-02-22
album: 少女の海から
  type: MusicAlbum
  date published: 2023-02-22
album: 南極地平線から
  type: MusicAlbum
  date published: 2023-02-22
album: ナナカマドを唄いながら - ピアノ曲集 -
  type: MusicAlbum
  date published: 2023-03-08
album: 少女炭酸集
  type: MusicAlbum
  date published: 2024-02-20
album: 少女は薔薇に眠る
  type: MusicAlbum
  date published: 2024-03-14
album: 風の吹く庭に
  type: MusicAlbum
  date published: 2024-03-14
album: episode 2
  type: MusicAlbum
  date published: 2024-04-15
album: 朝焼けのブルー
  type: MusicAlbum
  date published: 2024-04-15
album: episode 1
  type: MusicAlbum
  date published: 2024-04-15
album: 夏の日
  type: MusicAlbum
  date published: 2024-05-08
  track: 乾いた朝
    type: MusicRecording
    duration: PT2M31S
    duration ms: 151928
    explicit: false
    by artist: 真島こころ
    in album: 夏の日
      type: MusicAlbum
      date published: 2024-05-08
    isrc code: TCJPA2438841
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T03:46:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f270c2b0ae5679ddb62123003662b25fb71fba9ef0248b7dda69a0e176feee4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958819
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958819
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2438841
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T06:49:37Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f270c2b0ae5679ddb62123003662b25fb71fba9ef0248b7dda69a0e176feee4. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:49:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2438841.
      date published: 2026-07-20T06:49:37Z
    audio: 乾いた朝
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.934
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.289
      additional property: Energy
        type: PropertyValue
        value: 0.029
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.99
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.929
      additional property: Liveness
        type: PropertyValue
        value: 0.135
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.08
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.426
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 泣かない
  type: MusicAlbum
  date published: 2024-07-05
album: 朝を終えるために ピアノ曲集
  type: MusicAlbum
  date published: 2024-07-16
album: 25をなぞって
  type: MusicAlbum
  date published: 2025-01-28
album: まどろみの中の目隠し
  type: MusicAlbum
  date published: 2025-05-23
album: うまれかわる
  type: MusicAlbum
  date published: 2025-05-23
album: 水のフレア
  type: MusicAlbum
  date published: 2025-05-23
album: Santa Clothes Sound tracks
  type: MusicAlbum
  date published: 2025-06-23
album: 夏、忘れてしまったことを拾いに - 雪解 - (feat. 雪解)
  type: MusicAlbum
  date published: 2025-07-08
album: 今年の夏、さよなら
  type: MusicAlbum
  date published: 2025-07-08
album: Whispers of Autumn
  type: MusicAlbum
  date published: 2025-08-29